I really like this app but it needs a start button. I have tons of random readings saved and the only way to get rid of them is by deleting all history, so a start button and little count down would make this the perfect app, me and several people I know do lots of 0-60 tests regularly.

This app had great reviews so I figured I’d give it a try. Not sure if I’m doing something wrong, if the phone Hass to be held in a vertical position, that’s ridiculous. Very difficult to do in a car without a specific mount. My phone sits about a 45° angle. I tried this app multiple times, I hit 60mph every time - the app never showed that I got past 40mph. Now just driving around, it’s very accurate, it matches the speed of my car identically but it can’t handle the rapid acceleration part. Edit: I downloaded the app again months later and thought I would try it. 0 to 60 in a performance model three Tesla still says 9.7 seconds 0 to 60, repeatedly. I hit 60 miles an hour and it doesn’t show up for another six seconds.

I love this app. I just wish it had an 1/8 mile setting. I run the 1/8 more than anything. Also I use it on the street for my Speedo. I’ve checked it against a radar and it’s very accurate.

Using the 0-60 timer, it timed my E36 M3 at 7.3 seconds, which would mean it’s as slow as a base Honda Civic. Quite suspicious. So I timed it with video instead and got around 5.7 seconds 0-60. Just watching the timer as I began accelerating, I could tell it didn’t even start recording acceleration for around 1.5 seconds. It’s a sizable delay, and makes the 0-60 timer completely useless. The G-meter works fine, so it gets a couple stars for that.